Grease-cup.



W. W. DAVIS & W. W. MACDONALD. GREASE CUP.

APPLICATION FILED NOV: 27. 1916.

1 221,031 Patented Apr. 3, 1917.

WITNESSES: IN VENTORS.-

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earn A or WILLIAM W. DAVIS AND WILLIAM W. MACDONALD, OF SAN FRANCISCO, CALIFORNIA.

GREASE-CUP.

Specification of Letters Patent.

\ Patented Apr. 3, 1917.

To all whom it may concern:

Be it known that we, WILLIAM V. DAVIS and WILLIAM W. MAODONALD, citizens of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Grease-Cups, of which the following is a specification.

This invention relates to a grease cup.

Oneof the obj ects of the present invention is to provide a simple, cheaply manufactured, compression grease cup which is particularly adapted for use on automobiles and other machines where accessibility and quick manipulation are important factors. Another object of the invention is to provide a grease cup of the character described which is constructed without detachable parts and in which the threaded members are never unscrewed or separated when the cup is refilled or otherwise manipulated. Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figure l is a central, vertical section of the grease cup.

Fig. 2 is a side elevation of same.

Referring to the drawings in detail, A indicates a cylindrical casing provided with a bottom section 2, in which is formed a central opening 3. Formed on the upper end of the cylindrical body or casing A is a taperingseat 4:, which is adapted to receive a cover 5 secured to a screw 6, which, in turn, is carried by a bail 7 pivotally attached to the cylindrical casing A, as at 8.

Formed interiorly of the casing is a continuous thread 9, and adapted to be screwed down through the casing on said thread is a bottom member 10 in which is secured a nipple 11. This nipple passes through the central openings 3 in the bottom of the cylindrical casing and is otherwise adapted to be screwed into the hearing or member to be lubricated. The cover section 5 is provided with an angular, peripheral seat which is adapted to engage the seat 4 on the upper end of the casing. A self-seating and centering ground joint is, therefore, formed at this point as the cover is secured to the screw 6 and this must necessarily be turned to move the cover into or out of engagement with the seat l.

A compression grease cup constructed as here shown has many important features and advantages. First, it will be seen that no detachable parts are provided. It therefore is impossible to misplace or lose any individual part. Second, when it is desired to fill the grease cup, it is only necessary to turn the screw 6 by means of the handle 12 until the cover assumes the dotted line position shown at 12 (see Fig. 2). The cover, together with the bail 7, may then be swung about the pivots 8 into the dotted line position 7 The grease cup may then be filled in the usual manner and the bail together with the cover carried thereby, may

be returned to a position where the cover is secured by turning down the screw 6. The turning of the cover just as it begins to engage with the seat 4L causes a grinding action which always maintains a perfect joint. Leakage at this point is prevented and a quick filling, without removing any individual part of the cup, is permitted.

Another important feature is the con struction of the bottom member and its mounting within the main cylindrical container or body A. The bottom section 2 prevents the cylinder from being unscrewed or removed from the bottom member, thus eliminating the starting or crossing of threads either when filling or when turning the cup to force the grease into the bearing.

The. materials and finish of the several parts of the grease cup are suchv as the experience and judgment of the manufacturer may dictate.

We wish it understood that various changes in form, proportions and details of not wish to limit ourselves to the specific design and construction here shown.

While the bottom section 2 in this instance serves as a stop, we wish it understood that it may be entirely eliminated, when desired, as the pivot pins 8 may be used for the same purpose.

Having thus described our invention, what we claim and desire to secure by Letters Patent is 1. A grease cup including a bottom member, a casing threaded over said member, a cover for the casing, swingable means for connecting the cover to the casing, and rigid rotatable means between the cover and swingable means for fixedly and positively holding the cover in engagement with the casing and thereby holding the swingable means against movement.

2. In a grease cap, a bottom member, a casing threaded over said member, a cover for the casing, swingable means carrying the cover, and means for connecting the cover to the casing engageable with the bottom member to limit movement of the casing and bottom member in one direction.

3. A grease cup comprising a bottom member through which the grease is adapted to be discharged, an internally threaded cylindrical casing adapted to be screwed down over the bottom member, a bail pivotally secured to the cylinder, a screw passing through the bail, and a cover section for the cylinder carried by the screw.

4. A grease cup comprising a bottom member through which the grease is adapted to be discharged, an internally threaded cylindrical casing adapted to be screwed down over the bottom member, a bail pivotally secured to the cylinder, a screw passing through the bail, and a cover section for the cylinder carried by the screw, said cover having a tapering-peripheral seat engageable with a similar seat formed on the upper end of the cylinder.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of 5. A grease cup comprising an internally threaded, cylindrical casing, a bottom member adapted to be screwed down through the casing, means for limiting the downward movement of the bottom member, a seat form d on the upper end of the casing, a bail pivotally mounted on said casing, a cover adapted to engage the seat on the easing, and a screw passing through the bail adapted to move the cover into or out of engagement with the seat.

(3. In a grease cup, a. bottom member, a casing threaded over said member, a cover for the casing with a ground joint between the cover and casing and means connected to the casing and including a turnable element connected to the cover for locking the.

latter on the casing and for turning the cover during said looking to effect grinding of said joint.

In testimony whereof we have hereunto 1 set our hands in the presence of two subscribing witnesses.

WILLIAM w. DAVIS. WVILLIAM W. MAoDONALD.

WVitnesses:

JOHN H. HERRING, W. W. HEALEY.

Patents.

Washington, D. G. 

